The purpose of this study is to suggest the relationship between the core competence and usefulness of educational significance of multicultural education capacity by introducing the core competence of multicultural education based on the usefulness of multicultural education. In addition, the activity as participating in elementary care class is seen as a process of constructing competence and usefulness as an individual grows as a participant in the community, and points out the effect of competence on individual experience in this process. Therefore, in this study, we try to find its implication beyond the scope of the discussion on concepts that are centered on core competence and usefulness. In addition, we will present the plan through the 'Elementary Care Class' about the types of education that the existing multicultural education and other core competency education should aim for, and apply the core competency concept of the DeSeCo project so that the usefulness of the multicultural education capacity of the elementary care specialistI would like to provide a perspective on. It is expected that this will be a starting point for enhancing the usefulness through strengthening the capacity of multicultural education in the elementary care classroom for child care and education of children with various environmental and cultural backgrounds.